The primary expression of the brand is bottled at 100 proof (higher than the typical 80 that is the minimum required by U.S. Federal labeling requirements). Knob Creek was formerly aged for nine years,[1][2] but is now sold with no age statement.[3]

Knob Creek comes in a rectangular bottle with a corked or twist-on cap and wax-sealed top. The bourbon has a dark, golden-brown color.
According to the company, this is due to the relatively long aging process, which allows it to absorb more sugar from the wood than is the case for the other Jim Beam Small Batch brands.[4] The company describes the flavor as "rich, sweet, woody, full-bodied, almost fruity", and the aroma as "toasted nuts, grain, oak".[4]

In 2009, Beam ran a campaign to publicize their shortage of Knob Creek bourbon. Demand exceeded the 2000 forecast, when the stock began the aging process.[5]

Knob Creek Rye: a 100 proof (50% ABV) straight rye whiskey bearing the Knob Creek name was released in 2012. This is the first Knob Creek whiskey not to carry an age statement, instead being advertised only as "Patiently Aged".[7]

Knob Creek Smoked Maple Bourbon: Introduced in 2013. It is bottled at 90 proof (45% ABV), and is the company's first flavored bourbonliqueur.[8]

Knob Creek 2001 Limited Edition: Introduced in 2016, this was a one-time release that marks the passing of the production process from Booker Noe to his son Fred. This release was made from barrels that Booker stored in 2001 and were finished by son Fred. There were four different batches released in 2016, retailing at around $130 per bottle. Bottles were 100 proof and aged for 14 years, which is 5 years longer than the Original 100 and Knob Creek Single Barrel.[9]